Help with Lot- range Calculations

 

Could some help me with a formula

I am trying to calculate to have a neutral hedge

Of eur/usd and usdchf using lot and range of open to close

Eur/usd 1lot =1

Usdchf 1lot = .96

Daily open to close ( not high to low) is

Euro usd- 70 pips and usdchf 58 pips difference 12 pips or %

I am looking for the formula on how much usdchf do I need taking in account the daily open/close range And the lot difference

Reason: